Trick-telephone.



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UNITED STATES PATENT QFFICE.

EDMOND DE MOULIN AND ULYSSES S. DE MOULIN, OF GREENVILLE, ILLINOIS.

TRICK-TE LE PHONE Specification of Letters Patent.

Patented Jan. 21, 1908.

' telephones particularly designed for initiation purposes and the object of the invention is to provide a device having every appearance of an ordinary telephone and which, when an effort is made to call central, will automatically discharge powder or other material through the transmitter and at the same time fire an explosive cap contained within the instrument.

A still further object is to provide novel means whereby these results can be simultaneously obtained, said mechanism being simple and durable in construction and capable of being readily set.

With these and other objects in view the invention consists of certain novel features of construction and combinations of parts which will be hereinafter more fully described and pointed out in the claims.

In the accompanying drawings is shown the preferred form of the invention.

In said drawings: Figure 1 is a front elevation of the instrument the same being shown open and the closure broken away and partly shown in section; Fig. 2 is a vertical section on line a;cc, Fig. 1 and showing the positions of the parts immediately subsequent to the release of the hammer of the firing mechanism; Fig. 3 is a detail view of the bellows lock; and Fig. 4 is a section on line yy, Fig. 1.

Referring to the figures by characters of reference, 1 is a casing similar to that ordinarily used for housing the parts of a telephone, said casing being provided with a closure 2 on which may be arranged bells, not shown, the same being disposed at opposite sides of an opening 3 through which a clapper 4 of an electric bell is adapted to be projected. A tubular arm 5 extends outward from the closure 2 and is similar in appearance to the arm usually employed for supporting a telephone transmitter and at the end of this arm is a head 6 similar in appearance to a telephone transmitter but having an opening therethrough communicating with the interior of arm 5. This arm opens through the closure 2 and the aperture 7 within said closure is surrounded preferably by an elastic washer 8. A lever 9 is pivoted within the casing and has a forked hook 10 extending through the side thereof for supporting a receiver 11 connected to a binding post 12 by means of wires 13. A spring 14 is connected to the inner end of the lever 9 and to one side of the casing 1 so that when the receiver is removed from its supporting hook said hook Will be raised in the usual manner. A shaft 15 is journaled within the sides of the casing 1, and one end of the shaft projects beyond the casing and has a crank 16 thereon similar to that used upon telephones for calling up central. This shaft has an eccentric 17 secured thereon for the purpose hereinafter more fully set forth. Binding posts 18 are located upon the top of the casing and are connected by wires 19 with the magnet, not shown, for actuating the clapper 4. Wires 20 extend through these binding posts 18 to any suitable point removed from the instru ment where they are connected to a push button 21.

' Secured within the casing is a block 22 having a passage 23 extending therethrough, one end of said passage being surrounded by a tubular extension 24 adapted to receive a blank cartridge. Passage 23 opens into a downwardly extending tube 25 the lower end of which opens through the bottom of the casing 1. A tube 26 extends forward from block 22 and has a head 27 carrying a washer 28 which, when the closure 2 is shut, is adapted to bear against the washer 8. Moreover, the passage within the tube 26 will then register with the opening 7. Passage 26 opens into a small compartment 29 in the block 22 and extending from this compartment is a tube 30, one end of which is secured to the discharge end of a bellows 31. One face of the bellows is fastened preferably to one side of the casing while the other or movable face thereof has an angular arm 32 extending therefrom and connected with the stationary portion of the bellows by means of a coiled spring 33. A bracket 34 is secured within the casing and has an angular dog 35 pivoted to it and provided with a notch 36 in which arm 32 is adapted to be seated. The outwardly extending portion of the dog 35 is connected to a Wire 37 or other suitable device which is fastened to the strap 17 surrounding eccentric 17.

A pivot pin 38 is secured within the casing and mounted upon it is a lever 39. A spring 7 40 is coiled around the pin 38 and has one end fixedly secured while its other end is connected to the lever 39. This spring serves to hold the end of the lever normally in position upon the upper end of passage 23. A spring locking leaf 41 is secured within the casing and has an out-struck tongue 42 forming a shoulder 43, The end of lever 39 is disposed to rest against the edge of the tongue 42. A finger 44 extends from the shaft 15 and normally bears against the tongue 42.

in using the device herein described a blank cartridge 45 or other explosive is placed within. the passage 23 so that the cap will be in position. to be contacted by lever 39 when released. The bellows 31 is then opened and its arm 32 placed in engagement with the catch 35. A light powder such as flour is placed Within the compartment 29 through tube 26 after which the closure 2 is shut and locked. The bell of the instrument is then sounded by pressing on the button 21.. A person goes to the instrument and removing the receiver 11 makes it appear that he is receiving a telephone message. After hanging up the receiver he in.- forms the candidate or other person upon whom the device is to be used that he is requested to call up a certain number. The candidate then goes to the telephone and naturally turns the crank 16 in. order to notify central. The rotation of this crank causes the'wire 37 to be pulled longitudinally by pulley 17 and at the same time finger 44 will press backward on the tongue 42 of leaf 41. As a result the catch 35will be swung out of the path of arm 32 and the tensioned spring 33 will close the bellows and cause the powder contained within compartment 29 and tube 26 to be expelled through the tube 5 and transmitter 65. W hen the tongue 42 is pressed backward it moves out of the path. of the lever 39 and said lever will be swung downward by the tensioning spring 40 and will strike the cap of cartridge 45 and explode it.

It will be seen that the mechanism is very simple and durable in construction, is easily accessible and can be readily set.

What is claimed is:

1 The combination with a casing; of a holder therein having a discharge opening, spring actuated means for forcing air into said holder to expel the contents thereof, means simulating a part of a telephone for releasing said expelling means, a movable closure for the casing, and a tubular arm carried thereby and simulating a transmitter and its support, said arm being disposed to register with the discharge opening of the holder.

2. The combination with a casing, a holder therein, and a tubular arm opening into the holder and simulating a telephone transmitter and its support; of spring actuated means for forcing air into the holder, a pivoted locking device for holding the forcing means when set, a shaft, an eccentric thereon, and means operated by the rotation of the eccentric for releasing the locking device.

3. The combination with a casing; of a holder therein having a cartridge receiving extension, a tube below the holder and opening into the extension, a spring-pressed lever pivoted in the casing and disposed to strike a cartridge in the extension, a spring leaf having a tongue constituting locking means for the lever, a shaft, and means revoluble with the shaft for depressing the tongue to release the lever.

4. The combination with a casing; of a holder therein having a cartridge receiving extension, a tube below the holder and open ing into the extension, a spring pressed lever pivoted in the casing and disposed to strike a cartridge in the extension, a spring leaf having a tongue constitpting locking means for the lever, an arm opening into the holder and simulating a telephone transmitter and its support, spring actuated means for forcing air into the holder to expel its contents, means for locking the expelling means when set, a revoluble shaft, an eccentric'thereon, a finger upon the shaft for depressing the tongue to release the lever, and means operated by the eccentric for releasing the expelling means.

In testimony that we claim the foregoing as our own, we have hereto affixed our signatures in the presence of two witnesses.

Witnesses:

A. B. SCHEELE, H. O. DIEHL. 

